Motor-plow tractor.



J. B. STORY MOTOR PLOW TRACTOR; APPLICATION HtED MAR. 31, I916- RENEWEDMAY 26.1917;

Patented Nov. 20, 1917.

3 SHEETS-SHEET l.

1. 3. STORY. MOTOR PLOW TRACTOR. APPLICAT NN FILED HMLIH, 1916- RENEW EDMAY 26, i917.

1,247.170, Patented Nov. 20, 191?.

3 SHEE|S-SHEEI 2- kg 0 5 l. B. STORY.-

MOTOB PLOW TRACTOR.

APPucAnoN FILED. MAR. 31, 1916. RENEWED MAY 26.1911.

FEQ

JOHN BROOKS STORY, OF FOREST, MISSISSIPPI.

MOTOR-PLOW TRACTOR.

Application filed March 31, 1916, Serial No. 88,053. Renewed May 26,1917. Serial No. 171,306.

To all whom it may concern Be it known that 1, JOHN B. STORY, a citizenof the United States, residing at Forest, in the county of Scott andState of Mississippi, have invented a new and useful Improvement inMotor-Plow Tractors, of which the following is a specification.

My present invention relates to motor plows and tractors, so constructedthat the entire weight of the end portion of the tractor is brought uponthe soil-working implements.

It has been proposed to work the soil by use of tractors,'drawing thesoil working im plements, such as plows or harrows, either to the rearof, or beneath the tractor, and such has been brought into practicaluse, however, close attention to the soil-working implements isnecessary, and since their penetration into the soil is dependent uponthe weight of the implement alone, plowing or harrowing is not uniformwhere the soil is of different degrees of density and furthermore, twoor more operators are necessary to carry out the object in view, one toguide the tractor and others to direct the soil-working operation and torectify insufficient penetration due to slipping or upward movement ofthe plows.

The principal objects of my invention are first. to provide a tractorembodying soilworking implements, the horizontal axes of which are fixedwith respect to the tractor so that the weight of the machine comes uponsuch implements, assuring uniform penetration; second, to provide amachine of the character described which can be effectively used in theworking of soil, requiring the attention of but one operator; third, toprovide a tractor which may be adapted for use as a tractor per se, aland roller, a plow, or a combined plow and harrow; fourth, to provide amachine of the character described which is inexpensive to manufactureand maintain in good repair; and fifth. to provide a machine which maybe used for various purposes, but which 1s compact.

Other objects of the invention will appear in the following detaileddescription, taken in connection with the accompanying drawings form nga part of this specification. and in which drawings:

Figure l is a side elevation of a motor plow and tractor constructedaccording to my invention. I

Fig. 2 is a plan view of therear portion of the machine, the operatorsseat having been removed to d'sclose details.

Fig. 3 is a longitudinal vertical sectional view through the rearportion of the tractor as shown in Fig. 1. V

F 1g. 4 is a view similar to Fig. 2 showing different types ofsoil-working implements arranged in operative relation to the tractor-Fig. 5 is a sectional View on the line 5-5 of Fig. 4.

In the drawings, where similar characters refer to similar parts.throughout the several views, A. designates a tractor body; B a steeringwheel; G ground rollers'to which power is applied; D disk plowscargitudinal members 6 are supported upon a bearing 11 formed on thefork 12 of steering wheel B. Any suitable steering mechanism 13 may beprovided for rotating fork 12 about its vertical axis, and as shown, anoperators seat '14, fuel tanks '15, motive power control lever 16 andhood 17 for the 1Engine may be mounted upon the tractor o y. Vhile Ihave herein shown a tractor embodying a single steering wheel, it is tobe understood that I am not limited to this particular type of tractor,neither is it necessary that'the tractor be operated with the steeringwheel foremost.

Referring now to the ground roller C, it preferably comprises tractionwheels or roller sections 18, secured to power shaft 10 in any suitablemanner, such as by keys 19 fitting in complemental grooves 20 and 21 inhub 22 of each wheel 18 and its power shaft 10, respectively; and,supplemental two form a substantially uniform surface, resembling aroller such as is used in the making of roads, or in leveling the soil.

In practice, the wheels 18 and roller sections 23 are of such a diameterthat access may be gained to the interior thereof through the open ends24.

Each roller section is preferably made up of a plurality of segments 25,such as two complemental halves, as clearly shown in Fig. 5, saidsegments being joined in any suitable manner, such as by being providedwith inturned flanges 26, joined by bolts 27 and nuts 28. Each segmentcarries a plurality of spokes 29 to which are secured hub segments 30.In order hat movement of power shaft 10 may be imparted to the rollersections 23, a key 31 is provided for each of said sections, enteringgrooves 32 and 33 in one hub section and shaft 10, respectively.

Should it be desired to use the machine as a tractor per se, it may bemoved until one dividing line between each segment 25 of roller section23 is lowermost. Then, by releasing nuts 28 and removing the bolts 27,segments 25 fall away from power shaft 10, and the tractor body A issupported wholly by traction wheels 18.

. Motion from transmission 34, which embodies adifi'erential 35, countershafts 86, to which are secured sprocket wheel 87 may be imparted totraction wheels 18 through gear teeth '38 formed on the interior of saidWheels, and with which mesh pinions 39, mounted onshafts 40, which havebearing in a projection 41 of stems 8. Shaft 40 is rotated throughsprocket wheel 42, about which, in addition to sprocket wheel 37 istrained a chain 43.

Inasmuch as the roller sections are to carry soil working implements,such as the disk plows D, these roller sections are provided with aplurality of-perforations 44 extending radially through the rims of therollers, and the disk plows are provided with circumferentiallyextending flanges 45 having perforations 46 adapted to aline -with theperforations in the roller rim.

Through the alined perforations arepassed .bolts 47, receiving nuts 48at the interior of the rollers. It is preferred to form each "disk plowof two complemental halves or, in

other words, to make it up of segmental sections so that theuplows maybe readily detached from the rollerwhen their use is not desired. rAsclearly shown in Fig. 2, the

fa-ffiXed" tol-the'rolleri-at-both sides of the longitudin'a'l aXis'ofthe machine, toprevent aside" draft.

f f" The supplemental disk plows E are so arranged'as 'to act'upon thesoilwcakes turned -by"thefplo ws D as tothoroughly open up the ea-Ffurrows. 'l hese plows aremounted'upona shaft 49, journaled in thebearings 50 of brackets 51, made rigid with the tractor body A, asclearly shown in Fig. 1 of the drmving.

If desired, soil cutters F may be mounted on the roller. These soilcutters may be made of segments 52, provided with flanges by which theyare secured to the roller sections in any suitable manner, such as isshown. for the connection of disk plows with said rollers. When soilcutters are utilized on the roller sections, the soil pulverizers G aremounted on shafts 49, the blades 54 of the pulverizers working betweenthe furrow cutters F, so that the soil cake adhering to said cutters isbroken up, in addition to being acted upon after the rollers have passedover the soil.

While I have hereinbefore specifically described implements, such asdisk plows, soil cutters and pulverizers as being carried by the tractorand the penetration of which into the furrow, is gaged by rollersections, it is to be understood that I do not wish myself limited tothe application of these specific devices except in so far as the claimsimport.

From the foregoing it is made manifest that, by the removal of rollersections23, supporting the tractor body wholly by traction wheels 18,the machine may be used for the moving of heavy objects, such asthreshing machines, or, in other words, as a tractor per 36. By affixingthe roller sections 23 to the drive shaft 10 the machine may be used asa roller for making roads, leveling ground or compressing turf. W henapplying soil-working implements to either the roller sections or theshafts 49, they may be positioned to uniformly work the soil, or some ofthe implements may be dispensed with where it is desirable to openfurrows for the purpose of planting seed in furrows remote one fromanother. Since the weight of one end portion of the tractor comes uponthe soil-workin implements, they are caused to penetrate the soil anduniformity is accomplished by the engagement of the roller withx'thesoil surface, to limit penetration. Thexdisks, cutters or pulverizersmay be of any suitable diameter, itbeing understood that theirprojection below the plane common to roller sections 23 and the steeringwheel B determines thedepth of the cut or furrow made in the soil.

Changes in details may be made without departing from the spirit andscope of-my invention; but, v

I claim:

1. In a motor plow, a roller, and amphirality of disk plowsdetachablyq-secured to said roll-er.

a QJIn a'inotor plow, a'roller comprising a plurality of'separatelydetachable roller sections, and a disk plow secured to each rollersection;

3. In a motor plow, a roller comprising a plurality of separatelydetachable roller sections and a disk plow detachably secured to eachroller section.

4. In a motor plow, the combination of a plurality of separatelydetachable rollers each comprising a plurality of sections, and asoil-working implement secured to each of said rollers.

5. In a motor plow, a plurality of separately detachable rollers eachcomprising a plurality of sections, and a soil-working implementdetachably secured to each of said rollers.

6. A motor plow and tractor comprising in combination, a tractor body, aroller including a plurality of detachable sections dividedlongitudinally supporting said body and provided with a plurality ofperforations, a plurality of soil-working implements to fit about saidroller, each implement being divided into sections and provided witharcuate flanges having perforations to aline with those in said roller,the sections of said roller breaking joints with the sections of saidsoil-working implements, and securing devices passing through saidalined perforations.

7. In a tractor, the combination of a drive shaft, traction wheels onsaid drive shaft in spaced relation, a plurality of segmental sectionsof a radius equal to'that of said traction wheels and forming rollers,disposed intermediate and filling the space between said tractionwheels, and means for securing said sections together and rigid withsaid drive shaft.

8. In a tractor, the combination of a drive shaft, traction wheels onsaid drive shaft in spaced relation, a. plurality of rollers on'saidshaft, each roller of the same diameter as said traction wheels, fillingthe space therebetween, said rollers each being formed in twocomplemental sections, a key for retaining said rollers rigid with saiddrive shaft,

with their dividing lines in alinement, and

means for securing the sections of each roller together.

JOHN BROOKS STORY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

